This morning, the 19th of august, the German police arrested a 22 year old Lebanese student Youssoef Mohammed at Kiel Central station. The authorities accuse the young man who is living in Kiel at a student hostel since 2004 of planting a bomb at Cologne's central station on the 31st of July. Experts allege the technology student Youssoef Mohammed is member of a larger terrorist ring. His unknown accomplice is still on the run. In the meantime intelligence sources state that Hezbollah supports a number of students from Libanon and has its own foreign scholarshipscheme. These Hezbollah students who study at German universities are possibly a security risk to the state.

A Lebanese student has been arrested in Germany on suspicion of planting bombs on trains last month which are believed to have been a failed terror attack.

The man, 21, was detained at the main rail station in the city of Kiel.

The arrest follows the release of closed circuit TV footage of two male suspects by police on Friday.

The devices in abandoned suitcases on two trains failed to go off. Police said the bombers had intended to kill large numbers of people.

The student had been studying in the Baltic Sea port city of Kiel, where he was arrested in the early morning. He had been in Germany since 2004.

Chief prosecutor Monika Harms said he had apparently been planning to flee the country.

Reports say police searched his home in the city on Saturday afternoon.

He is believed to be "one of the two suspects that have been sought since yesterday with the help of video footage that was made public," the public prosecutors' office said.

In the video, the two suspects - dark-haired young men - are seen wheeling suitcases at Cologne station. Joerg Ziercke, head of Germany's Federal Crime Office, told reporters in the city he was confident that "we caught the right suspected bomb planter here in Kiel today".

Second suspect

Investigators first thought the bombs were part of a blackmail attempt, but they now believe the incident was the work of a terrorist group based in Germany.

Faulty construction may be why the devices failed to go off

A note written in Arabic, a telephone number in Lebanon, and packets of starch with labels in Arabic and English were found alongside the devices.

The authorities say they are investigating a possible link to Lebanon but they also haven't ruled out a link to Pakistan.

The identical suitcase bombs were fitted with timers set to go off 10 minutes before the trains arrived in Dortmund and Koblenz.

Police think they failed to detonate because of a construction flaw.

While the German authorities said the arrest is a major breakthrough in their investigation they warn that the second suspect is still at large.

Security has since been stepped up at German airports, and the rail authorities have announced they are installing more closed circuit TV cameras at stations.

WIESBADEN, GERMANY -- German investigators said Friday that bombs found on two trains last month might have been planted by two young men angered by the war in Lebanon.

The bombs were discovered in two abandoned suitcases on July 31 by train conductors in regional commuter trains in the northwestern cities of Koblenz and Dortmund.

The ignition mechanisms triggered, but the bombs failed to explode. If they had, officials said, they could have destroyed several train cars and derailed the trains, with an untold number of casualties.

German police, citing surveillance videos from the station in Cologne where the two young men boarded the trains, described them as men in their 20s with a "southern appearance."

The bombs found in Germany had been programmed to explode at 2:30 p.m., before the trains reached their destinations, the towns of Moenchengladbach and Hamm.

German police hypothesize that the suspects were angry about the Israel-Hezbollah war, in part because of evidence that included a bag of Lebanese cooking starch and a Lebanese telephone number.

Interior Minister Wolfgang Schaeuble said authorities were stepping up the policing of trains and stations and that they might approach travelers and examine luggage.